Fix btsnooz.py multi-line base64 decoding

    exit(1)

  iterator = fileinput.input()

  found = False

  base64_string = ""

  for line in iterator:

    if line.find('--- BEGIN:BTSNOOP_LOG_SUMMARY') != -1:

      decode_snooz(base64.standard_b64decode(iterator.next()))

    if found:

      if line.find('--- END:BTSNOOP_LOG_SUMMARY') != -1:

        decode_snooz(base64.standard_b64decode(base64_string))

        sys.exit(0)

      base64_string += line.strip()

    if line.find('--- BEGIN:BTSNOOP_LOG_SUMMARY') != -1:

      found = True

  if not found:

    sys.stderr.write('No btsnooz section found in bugreport.\n')

    sys.exit(1)